Comparison between visible and near-IR flame spectra from natural gas-fired furnace for blackbody temperature measurements |
| |
Authors: | Shahla Keyvan Rodney Rossow Xianchang Li |
| |
Affiliation: | a Department of Mechanical and Aerospace Engineering, Center for Artificial Intelligence in Engineering and Education, University of Missouri, E2411 Engineering Building East, Columbia, MO 65211, USA b Energy Research Center, Lehigh University, Bethlehem, PA 18015, USA |
| |
Abstract: | This paper reports the results from investigating the feasibility of calculating flame temperature from a natural gas-fired furnace based on blackbody radiation in the visible spectral range. If successful, the visible spectral range would provide data for multi-task applications such as emission line analysis and temperature calculation simultaneously. A probe containing a lens connected to the fiber-optic cables is inserted into the furnace and pointed towards the flame. Spectral intensity data are fed back to a spectrometer and then to a monitoring computer. The approach is first applied to various furnace types using the visible range to establish a baseline for the technique. The results for temperature calculations in the visible range are then compared with those taken in the near-IR (NIR) range under the same conditions. This comparison indicates that temperatures calculated from visible region could be as accurate as the one obtained from NIR region. Challenges associated with this technique are also discussed. |
| |
Keywords: | Natural gas Fiber-optic sensors Flame temperature |
本文献已被 ScienceDirect 等数据库收录! |
|